ARP Hex Nuts Main Stud Kit 4-Bolt Mains Chromoly Black Oxide - Dart LS Next Block AS04221 Fit small and big block

Fit small and big block Chevy (except 348 and 409)

RaceQuip 120 series suits a unique look and style

DTM connector plug

Economy Quick Spin

1979-1986 GMC C1500

ARP Hex Nuts Main Stud Kit 4-Bolt Mains Chromoly Black Oxide - Dart LS Next Block AS04221 Fit small and big blockARPs product line contains thousands of part numbers, and has expanded to include virtually every fastener found in an engine and driveline. These range from quality high performance OEM replacement parts to exotic specialty hardware for Formula 1, IndyCar, IMSA, NASCAR and NHRA drag racing and marine applications. Since 1968, ARP is the fastener of champions and the world leader in fastener technology. Product Description: Main Stud Kit 12 Point Nuts